kernel/linux.git, branch linux-rolling-lts

Merge v6.18.29

2026-05-11T06:20:52+00:00

Signed-off-by: Greg Kroah-Hartman

Linux 6.18.29

2026-05-11T06:20:52+00:00

Signed-off-by: Greg Kroah-Hartman

rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present

2026-05-11T06:20:52+00:00

commit aa54b1d27fe0c2b78e664a34fd0fdf7cd1960d71 upstream. The DATA-packet handler in rxrpc_input_call_event() and the RESPONSE handler in rxrpc_verify_response() copy the skb to a linear one before calling into the security ops only when skb_cloned() is true. An skb that is not cloned but still carries externally-owned paged fragments (e.g. SKBFL_SHARED_FRAG set by splice() into a UDP socket via __ip_append_data, or a chained skb_has_frag_list()) falls through to the in-place decryption path, which binds the frag pages directly into the AEAD/skcipher SGL via skb_to_sgvec(). Extend the gate to also unshare when skb_has_frag_list() or skb_has_shared_frag() is true. This catches the splice-loopback vector and other externally-shared frag sources while preserving the zero-copy fast path for skbs whose frags are kernel-private (e.g. NIC page_pool RX, GRO). The OOM/trace handling already in place is reused. Fixes: d0d5c0cd1e71 ("rxrpc: Use skb_unshare() rather than skb_cow_data()") Cc: stable@vger.kernel.org Signed-off-by: Hyunwoo Kim Reviewed-by: Jiayuan Chen Acked-by: David Howells Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

Merge v6.18.28

2026-05-08T06:40:23+00:00

Signed-off-by: Greg Kroah-Hartman

Linux 6.18.28

2026-05-08T06:40:23+00:00

Signed-off-by: Greg Kroah-Hartman

xfrm: esp: avoid in-place decrypt on shared skb frags

2026-05-08T06:40:23+00:00

commit f4c50a4034e62ab75f1d5cdd191dd5f9c77fdff4 upstream. MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter(), so later paths that may modify packet data can first make a private copy. The IPv4/IPv6 datagram append paths did not set this flag when splicing pages into UDP skbs. That leaves an ESP-in-UDP packet made from shared pipe pages looking like an ordinary uncloned nonlinear skb. ESP input then takes the no-COW fast path for uncloned skbs without a frag_list and decrypts in place over data that is not owned privately by the skb. Mark IPv4/IPv6 datagram splice frags with SKBFL_SHARED_FRAG, matching TCP. Also make ESP input fall back to skb_cow_data() when the flag is present, so ESP does not decrypt externally backed frags in place. Private nonlinear skb frags still use the existing fast path. This intentionally does not change ESP output. In esp_output_head(), the path that appends the ESP trailer to existing skb tailroom without calling skb_cow_data() is not reachable for nonlinear skbs: skb_tailroom() returns zero when skb->data_len is nonzero, while ESP tailen is positive. Thus ESP output will either use the separate destination-frag path or fall back to skb_cow_data(). Fixes: cac2661c53f3 ("esp4: Avoid skb_cow_data whenever possible") Fixes: 03e2a30f6a27 ("esp6: Avoid skb_cow_data whenever possible") Fixes: 7da0dde68486 ("ip, udp: Support MSG_SPLICE_PAGES") Fixes: 6d8192bd69bb ("ip6, udp6: Support MSG_SPLICE_PAGES") Reported-by: Hyunwoo Kim Reported-by: Kuan-Ting Chen Tested-by: Hyunwoo Kim Cc: stable@vger.kernel.org Signed-off-by: Kuan-Ting Chen Signed-off-by: Steffen Klassert Signed-off-by: Greg Kroah-Hartman

Merge v6.18.27

2026-05-07T04:12:03+00:00

Signed-off-by: Greg Kroah-Hartman

Linux 6.18.27

2026-05-07T04:12:03+00:00

Link: https://lore.kernel.org/r/20260504135142.929052779@linuxfoundation.org Tested-by: Brett A C Sheffield Tested-by: Peter Schneider Tested-by: Wentao Guan Tested-by: Florian Fainelli Tested-by: Ron Economos Tested-by: Miguel Ojeda Tested-by: Mark Brown Tested-by: Shuah Khan Tested-by: Dileep Malepu Signed-off-by: Greg Kroah-Hartman

ipmi:ssif: NULL thread on error

2026-05-07T04:12:03+00:00

commit a8aebe93a4938c0ca1941eeaae821738f869be3d upstream. Cleanup code was checking the thread for NULL, but it was possibly a PTR_ERR() in one spot. Spotted with static analysis. Link: https://sourceforge.net/p/openipmi/mailman/message/59324676/ Fixes: 75c486cb1bca ("ipmi:ssif: Clean up kthread on errors") Cc: # 91eb7ec72612: ipmi:ssif: Remove unnecessary indention Cc: stable@vger.kernel.org Signed-off-by: Corey Minyard Signed-off-by: Greg Kroah-Hartman

ipmi:ssif: Remove unnecessary indention

2026-05-07T04:12:03+00:00

commit 91eb7ec7261254b6875909df767185838598e21e upstream. A section was in {} that didn't need to be, move the variable definition to the top and set th eindentino properly. Signed-off-by: Corey Minyard Signed-off-by: Greg Kroah-Hartman